I have a pleasure to mail to you.

Please go through my concept to give you better ideas regarding my topic

” Invention of New RDBMS Rule after Research by Shekhar P. Sinha ” and I shall gain

knowledge from you kind people :-

Tablename : ————————-> T1

Rollno_Class-X ———>PK

Tablename : ————————-> T2

Rollno_Class-XII ———>PK

Tablename : ————————-> T3

Rollno_Class-Degree ———>PK

In table——> T1 , T2 and T3 I have only the rollno's of the candidate. In these table PK's has been

defined by not using the syntax of primary key.I have defined it in my way but it follows the rule of

unique and not null both.

Tablename : ————————-> Result_Details1

Rollno_Class-X ———>FK

Tablename : ————————-> Result_Details2

Rollno_Class-XII ———>FK

Tablename : ————————-> Result_Details3

Rollno_Class-Degree ———>FK

Now, my table—–> Result_Details1, Result_Details2, Result_Details3 which is the foreign key of

above respective PK cols fields have other details also.

Tablename : ————————-> Records

Rollno_Class-X ———>PK Rollno_Class-XII ———>PK Rollno_Class-Degree ———>PK

PK has been defined as in table—–> T1, T2 and T3.Now, my Table—> Records contains only

Rollno_Class-X ,Rollno_Class-XII and Rollno_Class-Degree. Which is my PK ? Pls